<input name="promotion1_id" value="<?php echo $promotion_id?>" type="hidden"></input>
<li>
  <label for="promotion2_id"><?php echo $this->lang->line('label.promotion_relate.promotion2_id') ?></label>
  <div class="input">
    <select id="promotion2_id" name="promotion2_id[]" size="10"
            class="chzn chzn-done" multiple="multiple" style="visibility: visible;">
      <option value="0">
        <?php echo $this->lang->line('label.option.select') ?>
      </option>
      <?php
      foreach ($relate_promotions as $ref) { ?>
        <option value="<?php echo $ref["id"] ?>"
                <?php echo !empty($obj["promotion2_id"]) && in_array($ref['id'], $obj['promotion2_id'])  ? 'selected="selected"' : '' ?>>
                  <?php echo $this->promotion_model->to_string($ref) ?>
        </option>
      <?php } ?>
    </select>
  </div>
</li>